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首页> 外文期刊>Environmental Science & Technology >Morpholine Nitrosation To Better Understand Potential Solvent Based CO_2 Capture Process Reactions
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Morpholine Nitrosation To Better Understand Potential Solvent Based CO_2 Capture Process Reactions

机译：吗啉亚硝化可更好地理解基于溶剂的潜在CO_2捕集过程反应

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摘要

The amine assisted CO_2 capture process from coal fired power plants strives for the determination of degradation components and its consequences. Among them, nitrosamine formation and their emissions are of particular concern due to their environmental and health effects. The experiments were conducted using morpholine as a representative secondary amine as a potential CO_2 capture solvent with 100 ppm standard NO_2 gas to better understand the nitrosamine reaction pathways under scrubber and stripper conditions. The role of nitrite in the nitrosation reaction was probed at elevated temperatures. The effects of different concentrations of nitrite on morpholine were evaluated. Formation rate, decomposition rates, activation energy, and the possible reaction pathways are elaborated. Thermal stability tests at 135 ℃ indicated the decomposition of nitrosamines at the rate of 1 μg/(g h) with activation energy of 131 kJ/moL The activation energy for the reaction of morpholine with sodium nitrite was found as 101 kj/mol. Different reaction pathways were noted for lower temperature reactions with NO_2 gas and higher temperature reactions with nitrite.
机译：燃煤电厂中胺辅助的CO_2捕集工艺致力于确定降解成分及其后果。其中，由于其对环境和健康的影响，特别需要关注亚硝胺的形成及其排放。使用吗啉作为代表的仲胺作为潜在的CO_2捕获溶剂，并用100 ppm标准NO_2气体进行实验，以更好地了解洗涤塔和汽提塔条件下的亚硝胺反应途径。在高温下检测了亚硝酸盐在亚硝化反应中的作用。评估了不同浓度的亚硝酸盐对吗啉的影响。详细说明了形成速率，分解速率，活化能和可能的反应途径。 135℃的热稳定性测试表明亚硝胺以1μg/（g h）的速率分解，活化能为131 kJ / moL。吗啉与亚硝酸钠反应的活化能为101 kj / mol。对于与NO_2气体的低温反应和与亚硝酸盐的高温反应，注意到了不同的反应途径。

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  • 来源
    《Environmental Science & Technology》 |2013年第10期|5481-5487|共7页
  • 作者

    Payal A. Chandan; Joseph E. Remias; James K. Neathery; Kunlei Liu;

  • 作者单位

    Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, Kentucky 40511, United States;

    Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, Kentucky 40511, United States;

    Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, Kentucky 40511, United States;

    Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, Kentucky 40511, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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